Download Manual HRUC-E

I Glossary
To use the HRUC-E correctly, it is important to
know the following definitions first.
3-position switch
The 3-position switch is one of the control
possibilities of the unit. It makes it possible to
switch easily between the three ventilation modes.
See section 3.1.1 for a detailed description.
Ground heat exchanger
A ground heat exchanger is an additional option to
preheat the supply air in the winter and to cool it
in the summer, by using the constant temperature
of the earth. Ducts are placed in the ground, in
which a fluid is circulating. This fluid adapts to the
temperature of the ground and is then guided
through a heat exchanger in which the supply air is
heated or cooled.
Balanced ventilation
There is balanced ventilation when there is as
much air extracted from a building as there is
supplied.
Bypass
The bypass is used during the summer period, to
extract the heat of a building in the evening or at
night. One of the air flows is not guided over the
heat exchanger, so the extracted heat is not
exchanged to the supply air flow.
Filter
For an optimum quality of indoor air, the outside
air is guided through filters before it enters the
building. In addition, the extracted air is also
filtered before it enters the heat exchanger. This
keeps the channels of the heat exchanger cleaner
and therefore more efficient.
Living spaces
Rooms in the house where people are present
during a long time, are seen as living spaces. Think
of the living room, bedroom and study room.
2
Deluxe digital operating panel
The digital deluxe operating panel is a more
sophisticated possibility to control the HRUC-E. It
includes a digital display and has several additional
settings compared to the 3-position switch,
including a clock program that switches the unit in
the mode you want at preset times, so you can
adjust the ventilation automatically to your needs.
In section 3.1.2 you will find more information
about this operating panel.
Wet areas
Areas where a lot of humidity or smell can occur
are known as wet areas. Think of the kitchen,
bathroom and toilet.
System D
System D stands for balanced ventilation system
with mechanical supply of fresh air and mechanical
extraction of contaminated air (by fans). The
amount of supplied and extracted air is adjusted by
the valves.
That is why it is important to keep the
same settings of the valves and to keep
the valves at the same setting.
It is also important that air can circulate well in the
house, so make sure that openings under doors are
not sealed or reduced.
Counter flow heat exchanger
The heat exchanger is the part of the HRUC-E
where the heat is exchanged between the supply
and extracted air. It consists of aluminum plates
that are executed alternately flat and corrugated.
Along these plates supply and extracted air flows
without directly coming into contact with each
other. It is known as counter flow because the
supply and extracted air flow in opposite
directions, for optimal heat exchange.